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https://issues.apache.org/jira/browse/HADOOP-13673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15626343#comment-15626343
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Allen Wittenauer edited comment on HADOOP-13673 at 11/1/16 7:00 PM:
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-00:
* first pass
Running the start-* and stop-* commands will fire off daemons either as the
user they are being run as or if the effective user id is root, as the
appropriate _user definition. Secure daemons will "do the right thing"--get
started as root but then switch to the appropriate user when needed.
At this point, the old start-secure and start-dfs are not merged. I may do
that in a future pass.
was (Author: aw):
-00:
* first pass
Running the start-* and stop-* commands will fire off daemons either as the
user they are being run as or if the effective user id is root, as the
appropriate _user definition. Secure daemons will "do the right thing"--get
started as root but then switch to the appropriate user when needed.
> Update sbin/start-* and sbin/stop-* to be smarter
> -------------------------------------------------
>
> Key: HADOOP-13673
> URL: https://issues.apache.org/jira/browse/HADOOP-13673
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.0.0-alpha1, 3.0.0-alpha2
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Attachments: HADOOP-13673.00.patch
>
>
> As work continues on HADOOP-13397, it's become evident that we need better
> hooks to start daemons as specifically configured users. Via the
> (command)_(subcommand)_USER environment variables in 3.x, we actually have a
> standardized way to do that. This in turn means we can make the sbin scripts
> super functional with a bit of updating:
> * Consolidate start-dfs.sh and start-secure-dns.sh into one script
> * Make start-\*.sh and stop-\*.sh know how to switch users when run as root
> * Undeprecate start/stop-all.sh so that it could be used as root for
> production purposes and as a single user for non-production users
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